Question

2x 5y=16 and 15x 13y = 17

Answer 1

Answer:

2x + 5y = 16. (1)

15x + 13y = 17 (2)

By Elimination method

2x + 5y = 16 (×15)

15x + 13y = 17 (×2)

Then the equation will be

30x + 75y = 240

30x + 26y = 34

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(-) ( -)

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49y = 206

y = 206/49

= y = 4.20

so by putting y value in equation (1)

2x + 5(4.20) = 16

2x = 16 - 21

2x = 5

X = 5/ 2

X = 2.5

so

y = 4.20 and X = 2.5